| 摘要 |
The invention relates to novel polysaccharide derivatives of formula (I). In said formula, p represents a number from 5 100,000; A1, A2 and A3 represent among others an oxygen atom or an NH group, D represents a group Da or Db, which can be photo-activated, whereby the group Db stands for a hydrogen atom, an alkyl group and/or an alkylene group or a silyl group, each of which can be substituted, the degree of substitution DSa of Da per anhydrose unit is 0.001 - 2 and the degree of substitution DSb of Db per anhydrose unit is 1 2.999, whereby DSa + DSb = 3; and whereby the anhydrose units can be linked to glucosides in an arbitrary manner and the polysaccharide derivative is soluble in chloroform or hexane. The invention also relates to a coating method using said inventive polysaccharide, to a substrate that has been coated accordingly and to a method for immobilising bio-molecules on said substrate. |
